1. The Adverb Clause
Grammar ch.4 Lesson 4

2. What?
An adverb clause is a subordinate clause that modifies a verb, an adjective, or an adverb
An adverb clause tells how, when, why, what, OR under what condition

3. Some Examples
Miss K looks as if she has died. (The adverb clause modifies the verb sounds, telling how Miss K looks)
Before they left, they took their cell phones from the pockets. (The adverb clause modifies the verb took, telling when they took their phones)
Will you focus so that I can finish my lesson? (The adverb clause modifies the verb will focus, answering why you will focus)
As long as he studies, he will pass the class. (The adverb clause modifies the verb will pass, answering under what condition he will pass the class)

4. Subordinating Conjunctions
An adverb clause is introduced by a word that shows the relationship between the adverb clause and the word/words the clause modifies
Unlike a relative pronoun, which introduces an adjective clause, a subordinating conjunction DOES NOT serve as a grammatical function in the clause it introduces
Who That
Whom Which
Whose
Relative Pronouns

5. Common Subordinating Conjunctions
-after -because -since -whenever
-although -before -so that -where
-as -even though -than -wherever
-as if -if -though -whether
-as long as -in order that -unless -while
-as soon as -once -until -why
-as though -provided that -when

6. Recognize It When You See It
Because administration heard about Sala’s grammar homework, the school was shut down for two days.
Before Charlie and Tucker can shred the gnar, they have to put on the SPF.
We were unable to identify the source of the smell until we learned what was under the floorboards.
The bartender poured with a heavy hand while Holden judged all the phonies.